Coolidge effect

What's the Coolidge Effect

In most animals, when a male encounters a new female, dopamine or semen production increases dramatically. However, when a male mates with the same female, dopamine or semen production remains unchanged.

In contrast, females tend to mate with the same or a small number of males

Collidge effect in humans

• man reported ire for a greater number of different sexual partners than did women
• Man more than women expressed a greater preference for a variety of sexual partners, regardless of the target's attractiveness
• Man more than women have a stronger preference for their partner to frequently change their physical appearance, whereas women more than men reported changing their own appearance more frequently

References

• Coolidge effect
• The Coolidge Effect
• Universal sex differences in the desire for sexual variety: Tests from 52 nations, 6 continents, and 13 islands
• Experimental evidence for sex differences in sexual variety preferences: Support for the Coolidge effect in humans